Propeller



Dec. 8, 1931. N. E. BLOSSER PROPELLER Filed July 16, 1930 4 Sheets-Sheet l Irmenlor War /aw Z F/as Allomey Dec. 8, 1931. N. E. BLOSSER PROPELLER Filed July 16, 1930 4 Sheets-Sheet 2 Invcnlor Allomey Dec. 8, 1931. BLQSSER 1,834,932

PROPELLER Filed July 16, 1930 4 Sheets-Sheet 5 lnvenlor 12 P JI W'wzZ Z 32%;.

L J gwm A Homey Dec. 8, 1931. BLQSSER 1,834,932

PROPELLER Filed July 16, 1930 4 Sheets-Sheet 4 J Invcnlor j /E fiafim/an 273105.5

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Allorney Patented Dec. 8, 1931 1 34 932 NORMAN E. BLOSSER, OF GENEVA, INDIANA PROPELLER Application filed July 16,

This invention relates to propellers, and more particularly to novel propulsion means for driving air craft, marine craft, or for employment in other various capacities where positive action is required.

During the course of the following specification and claim, other important objects and advantages of the invention will readily become apparent to the reader.

'10 In the drawings Figure 1 represents a side elevational view of one type of the present invention.

Fig. 2 represents a side elevational view of a modified form of the invention.

Fig. 3 represents a longitudinal fragmentary sectional view taken substantially on the line 33 of Fig. 1.

Fig. 4 represents a fragmentary longitudinal sectional view taken substantially on line H of Fig. 2.

Fig. 5 represents an elevational view of the inner side of one of the blades.

Fig. 6 represents a sectional view taken substantially on the line 6-6 of Fig. 9. 25 Fig. 7 represents a fragmentary detail sectional view disclosing one of the eccentric wheels. 2

Fig. 8 represents a sectional view, taken substantially on the line 88 of Fig. 1.

39 Fig. 9 represents a sectional view, taken substantially on the line 99 of Fig. 1.

Fig. 10 represents a fragmentary sectional view, taken substantially on the line 1010 of Fig. 9.

Referring to the drawings wherein like numerals designate like parts, it can be seen that in carrying out the present invention, a suitable support 5 may be employed upon which are mounted the standards 6 and 7, and 8. The standards 7 and 8 are provided with ledges 99 for supporting the platform 10 upon which the bearings 1111 are mounted for supporting the shaft 12 equipped with the crank handle 13.

The shaft 12 carries a worm gear 14 for. mesh with the gear 15 on the hollow shaft 16, which gear 15 is secured to the hollow shaft 16 by a set screw 17. The hollow shaft 16 extends through a bearing 18 on the standard 7 and through the spider 19. The end of the 1930. Serial No. 468,385.

hollow shaft 16 between the spiders 19 and 20 is provided with a spur gear 21 for mesh with the radial gears 22, each of the gears 22 being rotatably mounted on the pin 23 secured to the spider 20 as at 24.

Each of the radial gears 22 is provided with an extensionally positioned pin 25 for disposition through the bearing end 26 of a connecting rod 27 which extends to connect to one of the propeller blades generally re ferred to by numeral 28.

Each of the blades is substantially square and denoted by numeral 29, each having a block 30 secured to the inner side thereof, and each of these blocks 30 is provided with a protuberance 31, bifurcated to provide ears 3232, between which the outer end of the corresponding rod 27 is pivotally secured.

As is clearly shown in Fig. 10, each of the blocks 30 has a wear-resisting bushing 33 disposed through a bore therein, and allowed to project a substantial distance beyond the opposite side of the block to project into recesses in the opposed sides of the spiders 19 and 20. Washers 34 are interposed between the spiders 19 and 20 and the corresponding sides of the body 30, while a bolt 35 is disposed through registering openings in the spiders 19 and 20 and through the bushing 33 for connecting the leg of the spiders and at the same time rockably supporting the propeller units 28.

It can be seen in Fig. 3, that a smaller shaft .36 is disposed through the outer shaft 16 and has its ends journaled in the bearings 37 and 38 on the standards 8 and 6 respectively. A collar 39 surrounding the shaft 36 and secured thereto by the set screw 4-0 is also secured to the spider 20 by means 41.

Thus the spider 20 rotates with the shaft 36 so that when the power is applied tov the apparatus along the shaft 36, by way of the gear 42, the propeller will revolve, and when the propeller units are to be adjusted, the handle 13 can be operated for advancing or retarding the points at which the propellers are to reach their efiicient position.

As is clearly shown in Fig. 9, as well as in Fig. 6, tie bolts 43 extend through openings in the spiders 19 and 20 and pass through spacers t'interposed between the spiders with their ends engaging therewith. 'These spacers serve to maintain the spiders 1n a predetermined spaced relation.

The main difierence between the form of the invention shown in Fig. 1 and that shown in Fig. 2, is that the power shaft is the outer hollow shaft 160 whereas in the form shown in Fig. 1 the power shaft is the inner solid shaft 36. v j p v 1 7 By observing Fig. 2, it canbe seen that the inner solid blade adjusting shaft 36a is journalled through the bearings 37a and 3866 on the standards Sand 6 respectively 1 The form of the invention shown 1n Fig. 2 requires the same gear arrangement, and

tioned gear, means for rotating the shaft to which said hub part isconnected for rotating the spider, means for adjusting the shaft which carries the gear for rotating or partly rotating the gear and. the spider, blades pivoted to the outer ends of the arms and located between said arms ofthe two members and links connecting the bladesto gears of the spider whereby adjustment of the spider gears will adjust the pitch of the blades.

- In testimony whereof I aifix my signature.

N. E. BLOSSER.

as can be seen in Fig. 2, the hollow shaft 16a through which the shaft 36a extends is j'ournalled through the bearing 5a on the standard 7 and is po'vided with the collar 39a which is secured to I the spider 19a, corresponding to the spider 19 in'the first described form of the invention.

, The propeller blades 29 are of rectangular shape, each being provided'with pair of the aforementional blocks 30 as afore' stated,

and thereare two setsof the gears, and

while the propellermechanism is revolving,

the blades 29 maybe advanced or retarded Indriving the modified form of the invention, power is applied to-the gear42a and by actuating the gear 15a through the crank and worm drive described in reference to the. first form of the invention, as clearly shown in Fig. 8. T

can be seen that in whatever capacity this invention is employed, the same'henefits:

will be'derived, in that the blades'will operate coordinately and adjustments 'may be secured 'witha minimum amount of exertion on the part of the operator. I

While the foregoing specification sets forth the invention in definite terms, it is to be understood'that numerous changes'in the shape, size and materials may be resorted to without departing from the spirit and scope ofthe invention as claimed hereinafter. I I

Having thus described my invention, what I claim as new is p I 'A device of the class described comprising a supporting structure, a shaft rotatably supported thereby, a hollow shaft 'rotatably supported by the structure and through which the first mentioned shaft passes, a spider composed of two members each. comprising a'hub' part, and arms extendingoutwardly from the hub part, one ofthe hub parts being connected to one shaft, and the other hubpart being rotatably arranged on the other shaft, a gear carried by said other 

